20576375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 28439424

約数和(自身を除く): 7863049

約数列:

[1, 5, 17, 23, 25, 85, 115, 125, 391, 421, 425, 575, 1955, 2105, 2125, 2875, 7157, 9683, 9775, 10525, 35785, 48415, 48875, 52625, 164611, 178925, 242075, 823055, 894625, 1210375, 4115275, 20576375]

約数ペア:

[(1, 20576375), (5, 4115275), (17, 1210375), (23, 894625), (25, 823055), (85, 242075), (115, 178925), (125, 164611), (391, 52625), (421, 48875), (425, 48415), (575, 35785), (1955, 10525), (2105, 9775), (2125, 9683), (2875, 7157)]